Heart rate is controlled by the two branches of the autonomic (involuntary) nervous system. The sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS). The sympathetic nervous system (SNS) releases the hormones (catecholamines - epinephrine and norepinephrine) to accelerate the heart rate.
One of the most abiotic factor that may affect humans directly is waster availability because with out water we can get dehydrated and die.
<span>The answer is a lioness teaching her young how to hunt
An action could be considered as a reproductive strategy is it's being done to ensure the continuation of the next generation.
Teaching the young lion to hunt will definitely improve the young lion capability's to survive and help their survivability</span>
Answer:
B
Explanation:
i think their number increased in the next generation
<span>And of a large group of organized compounds occurring in foods and living tissues. </span>
